So I am going to be running a blow thru setup for my SC, and I am going to be making the purchase in the next day or so. I just wanted to see how you guys have yours setup so I have an idea on what I need to order. I know I need a "blow thru" type MAF, and of course a bypass valve, but is that it? Is there a specific bypass valve I need to use? Also, do you have your bypass is before the MAF (closer to the intercoooler) or after the maf (closer to the throttle body)? Im pretty sure I will have a shop install this, but Im just curious.

I had a website on a "blow thru" type maf, but I lost it however, this is what I have marked for my bypass valve:

http://turboaddictionparts.com/catal...&products_id=3

is there anything cheaper I can use? (just the valve is $230 )

 

er i mean blow off valve, i want it to vent to atmosphere... or does it work both ways?


also Im reading you can use the Lightning MAF in a blow-thru application, is this true? hte website recommends:


PMAS 3'' Pro Tube Blow-Thru MAF
- This is a very common Blow-thru MAF and a lot of people seem to use it, it utilizes a PMAS Maf and requires the MAF to be programmed for you injectors size, s/c vs n/a, and also vehicle specific (as all blow-thru must, this is something that a tuner can do, but will be set upon purchase of one)
- http://www.mperacing.com/maf.html

Lightning 90mm MAF
- People have been using the Lightning MAF in their blow-thru setups, it's a very common and probably cheapest route to go with going blow-thru. Only down fall is that the unit goes from a 3'' to 4'' (an adapter is used) which can cause issues vs just having a 3'' tube with MAF flange and MAF in it.
- http://modularspeed.com/90limaf5.html

SCT BA2800
- Yet another good blow-thru MAF that is used widely. The SCT Ba2800 can support up to 800hp.

75mm Blow-thru w/PMAS HPX MAF
-I recommend using this for your blow-thru setup. It does require the adapter cord but can support up to 800 hp without having to use a MAF extender. best bang for the bucks and overall great quality.
-This unit uses a 360 deg. MAF sensor to make sure that total air is read properly.
- http://modularspeed.com/75blthwpmhpx.html

 

http://www.vmptuning.com/store/index...=234&parent=29
I believe I told you that already

 

like I said, I lose the link....

but thanks man

 

thats the bypass i have and it vents to the atmosphere.

when you buy your MAF sensor, i suggest you go to corral.net and talk to this guy, http://forums.corral.net/forums/member.php?u=40710, i bought my PMAS meter with the protube for 250 shipped.

 

I'm running the standard ProCharger blow-through set up with the bi-pass valve vented to atmosphere. I plugged the intake port where it normally attaches. My bi-pass valve is located before the intercooler. The MAF is after the intercooler. The bi-pass valve has to be before the MAF because you don't want to be venting metered air to atmosphere. You don't really need a special blow-through MAF. I'm running the stock MAF with a Diablosport MAFia.

 

The procharger race valve is known as one of the best flower valves out there, but it's a bit more than the valve you're already looking at. Like stated above, before the intercooler is usually where most people put it, definitely before the MAF. From all that I've seen, especially if you plan on making big numbers, PMAS is the way to go.